Of course not. God doesn't need anything outside of Himself. He provides everything that He requires in His very being.
That isn't to say that you don't need to worship Him...
See what's happening with these two ways of looking at the need to/for worship? One is God's need, and He doesn't need anything because He provides all that He "needs" in Himself. That could be very contradictory if you take it the wrong way, but that's not the focus of what I'm saying.
The other is your need. If you don't worship God, then you are broken, fallen, unredeemed, unregenerate. You really need to learn to worship God. If you can do so, it will fix you, raise you, redeem you, and regenerate you. You will become a new creation in Christ. Someone who has seen something of God and can't help but share that glorious sight and change yourself to become like it (at least in part). That is worship, and an encounter with God is necessary.
If you can't worship, ask God to reveal Himself to you, that you might speak of the wonderful things He has done for you.